Olympic host cities pour millions of dollars into building facilities for the games, but what happens to the expensive structures when the festivities are over? Since 2008, photographer Jon Pack and filmmaker Gary Hustwit have been documenting former Olympic cities around the world to see how they have fared years later. Many countries extoll the economic benefits the games will bring, but often the structures sit abandoned as monuments to failures in urban planning. Still, other cities find ways to repurpose the structures into churches, malls, and public pools. Pack and Hustwit’s upcoming exhibition, The Post-Olympic City will feature photos, video, research materials, and Olympic ephemera.